In a recent announcement, Harvard and the Massachusetts Institute of Technology（MIT）said that they have joined forces to offer free online courses in an effort to attract millions of online learners worldwide.

    Beginning this fall, a number of courses developed by teachers at both universities will be offered online through a new $60 million program, known as edX. “Anyone with an Internet connection anywhere in the world can use our online courses,” Harvard President Drew Faust said during a meeting to announce the plan.

    MIT has offered a program called OpenCourseWare for ten years that makes materials from more than 2,000 classes free online. It has been used by more than 100 million people. In December, the school announced it also would begin offering a special certificate, known as MITx, for people who complete certain online courses. Harvard has long offered courses to a wider population through a similar program.

    The MITx will serve as the foundation for the new learning platform.

    MIT President Susan Hockfield said more than 120,000 people signed up for the first MITx course. She said Harvard and MIT hope other universities will join them in offering courses on the open-source edX platform.

     “Fasten your seatbelts,” Hockfield said.

    Other universities, including Stanford, Yale and Carnegie-Mellon, have been experimenting with teaching to a global population online.

    The Harvard-MIT program will be monitored by a not-for-profit（非盈利的）organization based in Cambridge, to be owned equally by the two universities. Both MIT and Harvard have provided $30 million to start the program. They also plan to use the edX platform to research how students learn and which teaching methods and tools are most successful.

    Sydney Trains is one of the most economical, reliable and convenient ways to travel throughout Sydney and its surrounds.

    Our network, the NSW Trains Intercity, covers suburban Sydney and extends to the Hunter, Central Coast, Blue Mountains, Southern Highlands and South Coast regions.

    The network is made up of several colour-coded lines. Trains from different lines can share the same platform, so check display screen and listen to announcements.

    Ticket prices are generally based on the distance traveled. You can visit Transportnsw.Info for details.

    Getting to the City

    In Sydney, if you're near a train station, you're on your way to the city. Every rail line leads directly or indirectly to the City Circle. It's the loop around the central business district of Sydney. Most City stations are underground so look out for the sign on street level.

    Automatic ticket gates

    Large stations have automatic gates for entry to, and exit from, the station. If you have an Opal card or a ticket which has a magnetic stripe (磁条) you must use the automatic gates. You may use the wide gate for wheelchair, pram or luggage access. Station staff will assist you.

    Night Ride buses

    Most trains do not operate between midnight and 4:00 a.m. For your convenience a special Night Ride bus service is available between these hours on most Sydney suburban lines.

    Track work

    In order for the tracks to the maintained, we sometimes have to replace train with buses, particularly at weekends. Please check the track work section for the latest service changes on your line.

    He's an old cobbler(修鞋匠) with a shop in the Marais, a historic area in Paris. When I took him my shoes, he at first told me: “I haven't time. Take them to the other fellow on the main street; he'll fix them for you right away.”

    But I'd had my eye on his shop for a long time. Just looking at his bench loaded with tools and pieces of leather, I knew he was a skilled craftsman(手艺人). “No,” I replied, “the other fellow can't do it well.”

    “The other fellow” was one of those shopkeepers who fix shoes and make keys “while-U-wait” — without knowing much about mending shoes or making keys. They work carelessly, and when they have finished sewing back a sandal strap(鞋带), you might as well just throw away the pair.

    My man saw I wouldn't give in, and he smiled. He looked at my shoes, had me write my name on one shoe with a piece of chalk and said, “Come back in a week.”

    I was about to leave when he took a pair of soft leather boots off a shelf.

    “See what I can do?” he said with pride. “Only three of us in Paris can do this kind of work.”

    When I got back out into the street, the world seemed brand-new to me. He was something out of an ancient legend, this old craftsman with his way of speaking familiarly, his very strange, dusty felt hat, his funny accent from who-knows-where and, above all, his pride in his craft.

    These are times when nothing is important but the bottom line, when you can do things any old way as long as it “pays”, when, in short, people look on work as a path to ever-increasing consumption(消费) rather than a way to realize their own abilities. In such a period it is a rare comfort to find a cobbler who gets his greatest satisfaction from pride in a job well done.

    “Children start putting their fingers in their noses as infants,” says Sarah Springer, MD' of Kids Plus Pediatrics in Pittsburgh. “As soon as they have motor control of their fingers, they'll find holes where their fingers can fit. It's not a worry—just a normal part of how they explore and learn.”

    In order to help your child to stop engaging in the behavior it's important to understand why they may start the habit in the first place, according to the University of Michigan Health System. Nose-picking can be a result of boredom, sleepiness, falling asleep, relaxation or coping. In most instances, nose-picking is likely just a phase（阶段）and the child will eventually quit it.

    There isn't much parents can do to stop the behavior of nose-picking, as it's a normal part of being a kid, Dr. Springer says. Parents are advised to ignore the behavior and not show frustration's this won't help encourage your child to stop picking their nose. Instead, Dr. Springer says to help your child learn to blow their nose once they are four or five years old and talk to your child about keeping their hands clean to avoid spreading germs.

    Take note of the season or climate, too, as dry air or cold can increase the occurrence of nose-picking. Parents should use a humidifier（增湿器）in these conditions to help nasal secretions（鼻分泌物）stay moist. Putting petroleum jelly（凡士林）a few times a day inside the nose can help with irritation and minimize picking.

    Once your child enters school, it's inevitable for them to see and pick up bad habits, Dr. Springer said. Nose-picking is a common habit, even among adults and as children age most will realize it's not an acceptable behavior.

    “Nose picking is a normal part of childhood,” Dr. Springer says. “Most kids will become conscious of the social stigma（羞耻）associated with it, and will eventually stop picking, at least in public.”

Earth's next superpower

The following countries have been sitting on hidden talents. And now they're about to fly.

NIGERIA (尼日利亚)

Nigeria says it pumps out as much oil as the other two oil-producing countries, Kuwait and Iraq. All this oil is cycling cash into the Nigerian economy and creating extremely rich businessmen. Analysts say that if Nigeria can improve its schools and technology, it could balloon into the world's 13th largest economy by 2050, right between Turkey and Italy. If that reason is not enough for optimism, Nigeria's president also has the sunniest name of any world leader: Goodluck Jonathan.

VIETNAM

As agriculture has given way to industry, unemployment in Vietnam has dropped. What's Vietnam's trick? It's ready to work. Other countries' laborers aren't as cheap as they used to be, which makes Vietnam a relative bargain for companies that need new factories abroad. However, the country has almost no railroads, its highways are in poor condition, and its largest city has just one airport, which was built before the Vietnam War. So what's the use of producing export-ready goods if there's no convenient way to ship them? The good thing is that, however, officials are widening highways, building a new airport and so on.

CHILE (智利)

Pipes, computers, motors, and your microwave all have one thing in common: They're made with copper (铜). Copper makes the world go round. And luckily for Chile, it's got about a third of the planet's copper supply. It just needs a way to dig it up and the government is pouring money into the country's mines.

When I decided to quit my job as a wedding photographer, I was in my late twenties, fresh from my divorce from Bob who had left me empty and confused. I decided to leave the US and travel. I had no savings, plus more than $5,000 in debt. What I did have were two sponsored tasks as a travel photographer—and with that along, I thought, it would be easy.

My first experience was a road trip from Toronto to Las Vegas, paid for by a car delivery service. Other trips followed and then I started a travel blog (博客). It was intended to be my calling card for assignment travel photography. Yet even with my blog and past experience, email after email I sent to publications, trying to get work, went unanswered. When they did get in touch, editors told me that I had no chance of making a career with travel photography. While I struggled to get on the path that I wanted, and as I expanded my blog to help get me there, I found myself wearing the hat of a full­time blogger.

Luckily, I got in at the right time. It was 2010, and the travel industry was just starting to turn its attention to bloggers. As I never could have predicted, my blogging—not my photography—did take me around the world successfully. At first, I thought it was for personal reasons, but I realized later that it was for free marketing for my blogging.

Within two years, I was being asked to speak at travel blogging conferences, which helped me to raise a network of friends around the world. Even more meaningful, however, was when I saw that my travels were also helping other people. My blog and social media followers saw that I chased my dreams and told me over and over again how they needed that kind of example, which was absent in their lives elsewhere.